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Other Assets (Capital Contributions Made to Loan Origination Partners) (Details) - Loan Originators $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) | Jun. 30, 2020 USD ($)
Other Assets [Line Items] |  |
Equity method investments | $ 31.7 | $ 31.7
Equity investment, convertible notes | 75.0 | 75.0
Impairment on investment | 7.1 | 65.2
Company’s residential whole loans at carrying value are serviced by entities the Company has an investment in | 973.7 | 973.7
Preferred Stock |  |
Other Assets [Line Items] |  |
Equity method investments | $ 68.0 | $ 68.0

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